Ribbon cartridge



FIG. 1 is a perspective view of a ribbon cartridge showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an elevation view of the rear end thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an elevation view of the front end thereof;

FIG. 6 is an elevation view of one side thereof; and

FIG. 7 is an elevation view of the side opposite that shown in FIG. 6. 

The ornamental design for a ribbon cartridge, as shown. 